Finding the Fourth Proportional to 1,541,529,979.53, 2,127,312,946.16 and 836,682,106.29
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Solution
The fourth proportional to 1,541,529,979.53, 2,127,312,946.16 and 836,682,106.29 is: 1,154,622,161.20
Step by Step Solution
- Step 1: Write the proportion equation
1,541,529,979.53 : 2,127,312,946.16 = 836,682,106.29 : x - Step 2: Convert to fraction form
1,541,529,979.53/2,127,312,946.16 = 836,682,106.29/x - Step 3: Cross multiply
1,541,529,979.53x = 2,127,312,946.16 × 836,682,106.29 - Step 4: Simplify right side
1,541,529,979.53x = 1,779,884,676,516,314,112 - Step 5: Solve for x
x = 1,779,884,676,516,314,112/1,541,529,979.53 - Step 6: Final answer
x = 1,154,622,161.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.